Inter State Rapid Transit Co 0-4-2 Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 1 (Locobase 11883)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 13, p. 28 and p. 259. Works numbers were 7986, 7992, 7994 in June 1886; 8051-8053, 8055-8056 in July

8703-8704, 8710-8711 in August 1887; 9399-9400 in August 1888.

Like rival East Fifth Street (Locobase 11577), this Kansas City street railway used the Baldwin "steam dummy" design to serve its lines. Only a couple years after the acceptance of this relatively large order of dummies, the ISRTC electrified its service and disposed of the fleet. At around that same time, Bill Eagleton of the railway wrote Baldwin to request a change in the valve to increase the average load up their steepest grade from two to three cars.

At least six went to work for lumber companies.

Specifications by Steve Llanso of Sweat House Media
Locobase ID11,883
RailroadInter State Rapid Transit Co
Number in Class14
Road Numbers1-8, 13-18
Number Built14
BuilderBurnham, Parry, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft) 4.50
Engine Wheelbase (ft) 9.67
Ratio of driving wheelbase to overall engine wheebase 0.47
Overall Wheelbase (engine & tender) (ft) 9.67
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)18,000
Engine Weight (lbs)24,000
Tender Loaded Weight (lbs)
Total Engine and Tender Weight (lbs)
Tender Water Capacity (gals)300
Tender Fuel Capacity (oil/coal) (gals/tons)
Minimum weight of rail (calculated) (lb/yd)15
Geometry Relating to Tractive Effort
Driver Diameter (in)35
Boiler Pressure (psi)130
High Pressure Cylinders (dia x stroke) (in)10" x 14"
Tractive Effort (lbs)4420
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.07
Heating Ability
Firebox Area (sq ft)35
Grate Area (sq ft) 8.70
Evaporative Heating Surface (sq ft)269
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)269
Evaporative Heating Surface/Cylinder Volume211.37
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1131
Same as above plus superheater percentage1131
Same as above but substitute firebox area for grate area4550
Power L12646
Power MT648.16

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